On further inspection, I think that to trigger this crash I need to have at least one window open when logging out.
I've got a bit further with gdb watches; it looks like the drawable is getting freed with DoDestroyDrawable from GLX but not removed from the serverClient's resource list, so when later in the shutdown process FreeClientResources is called it runs into the garbage of a free'd drawable. -- X crash on KDM logout (still - yes, really) https://bugs.launchpad.net/bugs/651294 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp